Mug



FIG. 1 is a top perspective view of a mug, showing my new design;

FIG. 2 is a front side view thereof;

FIG. 3 is a back side view thereof;

FIG. 4 is a right side view thereof, the left side being a mirror image;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines in the drawing views are included for the purpose of illustrating unclaimed environment only, and form no part of the claimed design. 

CLAIM The ornamental design for a mug, as shown and described. 